Upon being confirmed by the Senate on July 27, Federal Bureau of Investigation (FBI) Director Robert Mueller appointed Aaron Zebley as FBI chief of staff. Zebley most recently served as deputy chief of staff. Prior to joining the FBI, he was an assistant U.S. attorney for the Eastern District of Virginia for five years, specializing in national security and terrorism issues.
Within the FBI, Zebley has served in the agency's Counterterrorism Division as a special agent in the New York City Field Office and as special counsel to Director Mueller. He was one of the lead investigators assigned to the U.S. Embassy bombings in Dar Es Salaam, Tanzania in 1998.
Zebley's predecessor, John P. Carlin, has been selected to serve as principle deputy assistant attorney general in the Department of Justice's (DOJ) National Security Division. He will serve under the newly confirmed Assistant Attorney General Lisa Monaco. Carlin joined DOJ in 1999 through the Attorney General's Program. He has also served in DOJ's Computer Hacking and Intellectual Property Section and as U.S. attorney for the District of Columbia.
In an email on July 28, Mueller wrote, "John's talents and judgment will be missed here at the bureau, but I look forward to continuing to work with him in his new position."